Machine for making connector tubes for radiators



e. H. LOBER MACHINE FOR MAKING CONNEGTOR- TUBES'FOR RADIATORS 'Fi ld April 8. 1921 5 Sheetg-Sheet 1 v h E- I ll IL1 r "igulllllir' i I llllllllf 2 May 22, 1923. RASSEEQ G. H. LOBER MACHINE FOR MAKING CONNECTOR TUBES FOR RADIATORS Filed April 8, 1921 s Sheets-Sheet '2 May 22, 1923. j 1,455,9HQ

. e. H. LOBER MACHINE FOR MAKING CONNECTOR TUBES FOR RADIATORS Filed April 8. 1921 :5 sheets-sheets TREE- Patented May 22, 1%23. 7 I y warren starts rarsar crates.

GEORGE H. Lorna, or TOLEDO, .onro.

MACHINE FOR. MAKING CONNECTOR TUBES FOB RADIATORS.

Application filed April 8, 1921. Serial No. 459,767.

To all whomz't may concern: whereby the connector may be formed. The 5' Be it known that I, GEORGE H. LoBER, a machines and dies are illustrated in the accitizen of the United States, and a resident companying drawings. I

of Toledo, in the county of Lucas and State F igurel of the drawings illustrates a front 5 of Ohio, have made an Invention Appertain- View of a part, of the machine for making ing to Machines for Making Connector the first stampings of the connector, it being 60 Tubes for Radiators; and I do hereby deunderstood that the same, or similar plunclare the following to be a full, clear, and eX ger presses, may be used for manipulating act description of the invention, such as will the dies for completing the connector. F lg;

enable others skilled in the art to which it 2 illustrates a sectional view of the upper appertains to make and use the same, refdie taken on the line 22 indicated in Fig. 65 erence being had to the accompanying draw 1. Fig. 3illustrates a'sectional view of the ings, and to the characters of reference lower die taken on the line 8- 3 indicated marked thereon, which form a part of this in Fig. 1. Fig. 4 shows the shape of the specification. sheet metal before it is placed between the My invention has for its object to provide dies illustrated in Figs. 2 v and 3. Fig. 5 .70 a machine for making connector tubes, par-' illustrates one of the sheet metal pieces ticularly, for radiators. In the construction formed, after the dies shown in Figs. 2 and of radiators the lower water chamber is con- 3 have operated upon it. .Fig. 6 illustrates nected with the jacket of the'engine, and in the shape of the piece after it has been order that the radiator may do its most trimmed. Fig. 7 illustrates the piece after 75 efficient work, the lower connection should be the sides have been turned preparatory to made at as low a point as possible. Ihave finishing the connector. Fig. .8 illustrates provided a connector that connects the tua top view of the stationary die, theconnecbular passageway with an opening formed tor'being located in position in the die. Fig

partly in the bottom and partly inthe side 9 illustrates a sectional view taken on the 80 of the wall of the lower water chamber of line 99 indicated in Fig. 8. Fig. 10 illusthe radiator, and'so that the end of the contrates the upper die that is placed in the nector has an opening whose edge is such plunger press for finishing the connector.

that a portion thereof is located in a plane F ig. 11 illustrates aside view of the lower extending at right angles to the other pordie, also shown in Figs. 8 and 9. Fig. 12 85 tion of the edge. illustrates the upper and lower dies illus- Moreover, it is desirable that the connectrated in Figs. 10 and 11, when in closed tion with the radiator shall be located at position, that is, when the upper die has fin-.

one side of the engine, and consequently, in ished its operation. Fig. 13 illustrates'a side order to give the desired inclination towards view of the completed connector. Fig. 14 a vertical plane extending through the axis illustrates a sectional view taken on the line of the crank shaft of the engine, as well as a 14-14 indicated in Fig. 13. Fig. 15 is a top desired upward slope to permit free flow due view of the finished connector.

to convection or to a power pump, the con- 1, Fig. l, is the frame work of the plunger nector is provided with a body portion press, which is provided with-the plunger which slopes inward as well as upward. 2. A suitable die 3 is connected to the This necessitates the formation of a connecplunger 2 that coacts with the stationary die tor that is difficult to shape. By my inven- 4 to produce substantially the semi-form tion I have provided a machine whereby the of the connector. Pieces of sheet metal 5,

connectors may be r pi y formed d m y shaped in the manner shown in Fig. 4:, are

be provided with the necessary flanges for placed on the ring 6, and are elastically held welding or soldering the connector to the by the rubber cushion means 7. The elasbottom and side of the radiator. tic cushion means 7 is supported 011 the 50 The invention may be contained in strucframe 1 by means of the rod 8, and the ring tures of different forms. To illustrate a 6 is connected by means of rods 9 to a plate practical application of the invention I have 10, through which the rod 8 extends. The selected, for purposes of illustration and dedie 3' strikes first the edge portions of the scription, one or two constructions and dies sheetmetal piece 5 that is yieldingly held by the pressure of the rubber cushions 7 between the ring 6 and the face of the die 3, as the die 3 moves down, and shapes the central portion of the sheet 5 to produce substantially the semi-form 11 of the connector. The side edge ofthe piece 5 is necessarily drawn in by reason of the formation of the semi-form ot the connector in the central portion of the flat sheet metal piece 5.

The sheet metal piece 5 is then cut by a suitable shearing die, as shown in Fig. 6., and so as to leave the portion [12 of the connecting flange that issecured to the underside of the radiator. The portions 13 are then bent roughly substantially to the shape shown in Fig. 7. vThe sheet metal piece is then placed-in a stationary die 14 having a recess (15 contormlngto the Salli-1012111 or the connector. A cover plate or clamp 16 is. then placed across the flange portion 12, and

so as to cover the end of the depressed portion 11. Theplate is secured by means of a latch or arm 17 and by the lug 18. The plate may bepivoted to the upright 19 by means of the bolt' 20. It is provided with "an up Wardly extending flan e 22 for shaping the flange of the connector When the upper die 21 is broughtdovvn e The upper die 21 has a cylindrical channel having flaring edge portions 23 that gather the side portions 13 oi the sheet metal When bentroughly into the position shown in Fig. 7, and subsequently draws the side portions 13 into the form of a cylinder. A cylindrical block 27 is placed Within the sheet metal pieceto form ananvil for the operation of the upper die 21. The block 27 may be provided With a handle 28. The ends of the side portions, that is, the corners of. the upper die 21, are provided With bev-. eled surfaces 24 that engage parts of the side portions 18 and guide them towards the flange 22, Where they are held by the side 250i the upper die 21, and against \VlllCll they slide as the side portions 13 of the sheet 1 metal piece are gathered the die, untilthey form the portions 26 of the connecting flange of the connector 28. I

The connector is noW formed in the shape illustrated in Figs. 13 and .1 1. The portions 26 may noW be united along the line of their contact edges, and also the cylindrically formed portions 13 may likewise be united, as by soldering orbrazing or electric Welding. If desired, a suitable bead 29 may be formed near the end of the connector, Whereby a flexible pipe, such as a rubber pipe, may be connected to the connector in the manner Well known in the art.

I claim:

1. In a machine for forming radiator connectors from sheet nietal pieces, a stationary diehaving a recess conforming substantially to the semi-form oi the connector, a

clamping plate, for securing the semi-form of the connector in position and having a flange coacting to shape a portion of the flange of the connector, a block positioned in the connector and forming an anvil, a movable die having; a cylindrical recess for gathering ec ge portionso't' the sheet metal.

2. In a machine for forming :radiator connectors from sheet metal pieces, a sta tionary die having a recess conforming substantially to the semi-form of the connector, a plate for locking the connector in the stationary die and having-a flange coacting to shape a portion of the flange of the connector, a movable die having a channeled portion for gathering side portions otthe sheet metal piece over the anvil, and havingbeveled corners for gathering parts of the sheet metal piece that form a flange portion, and pressingthein against the flange or the plate, the side surface of the movabledie and the flange oi the plate operating to guide the said parts of the connector as the movable die collects the side portions of the connector and presses them against the anvil.

' In testimony whereof, I have hereunto signed my name to this specification.

GEORGE H. LOBER. 

